Improvement in feeders for nail-machines



UNITED STATES PATENT @EFI-CE.

HENRY B. LANDERs, or wiLL-1AMseUne,EEw vonk.'

IMPROVEMENT IN FEEDERS FOR NAIL-MACHINES.

Specijicatonvjbrmz'ng part of Letters Patent No. 113,310, dated April 4, 1871.

To all whom t't may concern:

Be it known that I, HENRY'B. LANDERS, ol' Williamsburg, in the county of Kings and State of New York, have invented a new and Improved Feeder for NaiLMachines 5 and I do hereby declare that the following isl a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the saine,'reference being had to the accompanying drawing forming part of this specification.

Figure l represents a side elevation, partly in section, of my improved feeder for nailmachines. Fig. 2 is a top view, partly in section, of the same, the plane of section being indicated by the line m x, Fig. 1. Fig. 3 is a face view, partly in section, of the same. Fig. 4 is a rear elevation of the same. Fig. 5 is a transverse section of the same takenon the plane of the line y y, Fig. 2, the arrow 1 indi eating the direction of the eye toward the plane of section. FigV 6 is a similar section oi' the same taken on the plane of the line a z,

Fig. 2, the arrow 2 indicating the direction ot' the eye.

Similar letters of reference indicate corresponding parts.

The object of this invention is to provide 'ay mechanism whereby plate-iron can be 'fed to the cutting apparatus of a nail-machine at such regular intervals that the blanks can be cut therefrom with the desired velocity.

The invention consists of several novel features of mechanism whereby the desired result is obtained with the aid ot' but little power, and so that one person can at the same time attend to several feeding-machines and keep them in good working order.

A in the drawing represents the standard or stationary frame of my improved feeder. It is made of suitable form and size, and sustains a jacket, B, which :rests on the inclined face of the standard, so as to stand in an inclinedposition, as shown.

The jacket B is pivoted to the standard by a pin, a, and locked thereto by another pin or fastener, b.

Through the inclined tubular aperture of the jacket is fitted the feedcase7 C. The same is of prismatic or cylindrical form, and has a longitudinal aperture or opening of l such shape that the fiat bar or plate D of iron from which the nails are to be ent can be held therein and moved throughit.

The feedcase C is, by projecting trunnions c c, pivoted within a tube, E, which is journ'aled in the jacket B, near to the back end of the same, to revolve freely.

The tube E projects beyond the back. of the jacket, and is toothed to receive oscillating motion from a toothed disk or Wheel, F,`into which its teeth are meshed. The tube E, when turned, carries the feed-case around with it.

In front the feedcase passes through a sleeve, G, which has an oval outer edge. The case U tits the sleeve in such manner that the same will turn with it.

The sleeve rests on a concave support, d, which is affixed to thejacket.

When the sleeve G is turned to rest on the support with its major axis, it will elevate the front part of the feed-case, the latter at the same time being in position to hold the plate D on edge, as in Fig. 2.

lWhen the sleeve rests with its minor axis on the support d, it holds the feedcase lower than before, while the saine retains the plate D in a horizontal position, as in Fig. 3.

The front of the feed-case C projects beyond the sleeve G, and carries on its opposite faces a pair of nippers, `H'H, which are pivoted to the feed-case at e, the pivot-pins passing through slots, as in Fig. l, to allow some longitudinal, as well as oscillating, motion to the nippers. Y Y

The lower ends of the' two bars constituting the nippers are intended to bite against the opposite faces of the plate D. To do this their upper or back ends must be swung apart. With this object ahook, f, projects outwardly from the upper end of each upper bar, and fits over the edge of an annular cam, I, into a zigzag groove cutinto the same.

The cam I is placed around the sleeve G, and has projecting trnnnions g g, which t through vertical slots inthe jacket B, as shown.

The cam I is thereby enabled to move up and down with the sleeve G during the aforesaid vertical change of its axis, but cannot turn with it.

vThe outer edge of the cam I is also of oval form, and so placed that its major axis is vertical.

rlhe hooks j will thereby be drawn apart when vertical, to close the nippers against the plate I), while they will be nearer together when in a horizontal position, so as not to hold the said plate.

While the hooks j' are in a vertical position to cause the nippers to bite, they are also farthest forward, while, when the nippers are not holding the plate, they (the hooks) are drawn back in the zigzag groove of the cam I. Thus when a plate, D, has been inserted within the feed-case, to protrude beyond the front or lower end ol'l the same, it will, after each halt revolution of the tube E, be taken hold ot' and JVmovediorwardmby the nippers, the degree of feed heilig equal to the longitudinal playof the hooks in the zigzag groove. While the plate D is thus held by thc nippers a blank is out from one end by an oblique cutter, and then the plate is reversed and fed ahead to have another blank cut from its end.

The oblique position ot' the cutter being always the same, it follows that, owing to the reversal ofthe plate D after each cut, the blanks separated from it will be ot' tapering form.

The aforesaid up-and-down play of the sleeve G and front part of the feed-case, rendered possible by the pivoting of the latter in the tube E, serves to raise the plate' I) clear of the cutter-head while on edge, and to prevent friction of said plate on the cutter.

Spring'clasps h h are arranged on the narrow sides of the feed-case, for holding the plate D while the same is released by the nippers.

Motion is imparted to the disk F by means of a pawl, J, which is pivoted to a rod, L,

'which atits lower end is pivoted to ears i projecting from a vertically-reciprocating crossbarj. The pawl is harpoon-shaped, and locks alternately under two pins, k k, that project v trom the face ofthe disk F.

A pin, l, projecting from the rod L, enters a groove, fm, in the face of a plate on the disk.

As'the rod L is lowered by the bar j the `pawl fits under the lower pin k. When the bar j is raised the rod and pawl are also elevated, and carry the disk partly around, causing thereby a half revolution of the tube E.

During the downward stroke of the bar j the disk remains at rest and the plate D undisturbed, to allow the blank to be cut. The pawl engages then the other pink, and at the next upward stroke turns the disk in the opposite direction. During all these movements the upper end of the rod L is'guided bythe groove m. The bar j is connected with an oscillatin g lever, M, or other mechanism, receiving its motion from the same.

When it is. desired to stop the motion of the tube E without arresting the propelling machinery, a footlever raises a bar, N, against a pin, 7c, preventing the pawl from taking hold of the same.

' The jacket Bis'pivoted to thefstandard YbyY Y Y Y a pin, a, to permit the plate D to be swung clear of the cutter when the pin b is withdrawn, in order to allow the cutters to be sharpened.

Having thus described my invention, I claim as new, and desire to secure by Letters Patentl. The combination of the nipper-levers H and feed-case o with the hooks'f and an eccentric disk, or its equivalent, for actuating the hooks to open and close the nippcrs, substantially as described.

2. rEhe combination of the nipper-levers H and feed-case c with the hooks s and the eccentric and irregularly-grooved cam I, as and for the purpose set forth.

3. In combination with the subject-matter of the preceding claim, the eccentric sleeve c and support d.

4. In combination with the tube E and its toothed segment, the toothed wheel or segment F, the slotted plate and the pins K thereon, the pawl J and mechanism for actuating said pawl, substantially in the manner described.

5. In combination with the slotted plate and pins K, the pawl J, rod L, and mechanism to impart to said rod vertically-reciprocating movement, substantially as described.

HENRY B. LANDERS. 

